The results will most likely be valid because the scientists kept getting the same results after REPEATED experiments. If they just conducted one experiment then they would not have been sure if what happened was a fluke or if another thing would happen after another experiment.<span />
A+T/C+G and in RNA: a+u / c+g U=uracil
Parthenogenesis is a form of asexual reproduction that results in a viable egg. A good example of this would be the Mexican Whiptail Lizard. The answer would be the last choice, an egg develops without being fertilized.
Answer:
He discovered that DNA is the primary constituent of the gene, thereby helping to create a new approach to the study of the biology of heredity.
Explanation: